Linux: sum a column of numbers
A often problem i have to deal is how to sum columns of numeric data piped from other commands or files, lets see how we can deal with……
$ whoami — Konstantinos Patronas
Ubuntu: How to use netplan to configure static IP
Netplan enables easily configuring networking on a system via YAML files. Netplan processes the YAML and generates the required……
Why you might wanna have a look on this as well, it uses pandas and multiprocessing to create a…
https://python.plainenglish.io/pandas-and-multiprocessing-how-to-create-dataframes-in-a-parallel-way-72f9b18ea72f…
Bash: execute a script only when no other instance of the script is running.
Possible issues having two instances of a cronjob at the same time…
What is Hope?
Usually, I don’t write for non I.T stuff, mainly because I don’t think that I am a subject matter expert to something else. Still, I……
Linux: how to run a command as another user
There are two ways to execute a command as another user, using sudo or using su , despite they do the same thing the way how they work is……
Python: SQLite tutorial
What is SQLite?…
Docker: how to use the nginx web server.
Docker containers are like little virtual machines, but they contain only the running application and its dependencies and they run……
How to Run Python Functions in Parallel Using Ray API
Build distributed applications…
Linux: How to rsync between two remote servers that do not communicate each
rsync is widely used by sysadmins to sync files between servers, primarily because of its advantages to sync deltas and resume interrupted……